Question

At pH 6.5 - 7.5, which among the following nutrients are available?
1. Al, Fe
2. Zn, Cu
3. K, N
4. P, Bo

Answer 1

Correct Answer - Option 4 : P, Bo

The correct answer is P, Bo.

• Availability of nutrients with pH values:

Availability at pH	Nutrients	Remark
< 6	Al, Fe, Mn, Zn, Cu, Co	All trace elements except Bo and Mo
6.5 - 7.5	P, Bo	Boron is available at pH 5 - 7
> 6.5	N, K, Ca, Mg, S, Mo	All major nutrients except P